Williams Dam dam
Williams Dam
Williams Dam, located in Adair, Missouri, serves as a critical structure for grade stabilization along the Little Walnut Creek. Completed in 1998, this private-owned earth dam stands at a height of 25.5 feet, with a hydraulic height of 22 feet and a structural height of 23 feet. With a normal storage capacity of 16 acre-feet and a maximum discharge of 24.5 cubic feet per second, Williams Dam plays a crucial role in managing water resources in the area.
The dam's spillway type is uncontrolled, with a width of 10 feet, and it has a low hazard potential. While the condition assessment is currently not rated, the risk assessment indicates a moderate risk level. Despite not being regulated or inspected by the state, Williams Dam continues to provide essential grade stabilization functions in the region, contributing to water resource management efforts. Water resource and climate enthusiasts can appreciate the engineering and hydrological significance of Williams Dam in maintaining the balance of the ecosystem along the Little Walnut Creek.
Overall, Williams Dam stands as a testament to effective grade stabilization infrastructure, showcasing the importance of private ownership in water resource management. With its strategic location and design, this earth dam serves as a vital component in the local watershed, highlighting the intersection of human-made structures and natural water systems. For those interested in water resource and climate dynamics, Williams Dam offers a fascinating case study in dam engineering and its role in sustaining ecological balance in the Missouri region.
Dam data reference
Condition Assessment
- Satisfactory
- No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
- Fair
- No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action.
- Poor
- A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency.
- Unsatisfactory
- A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
- Not Rated
- The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Hazard Potential Classification
- High
- Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
- Significant
- Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environmental damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
- Low
- Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
- Undetermined
- Dams for which a downstream hazard potential has not been designated or is not provided.
Plan around the weather
Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Williams Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Chariton River At Novinger | 173 cfs | → |
| Long Branch Creek Near Atlanta | 0 cfs | → |
| Locust Creek Near Linneus | 91 cfs | → |
| East Fork Little Chariton R. Nr Macon | 106 cfs | → |
| Chariton River At Livonia | 45 cfs | → |
| Medicine Creek Near Laredo | 112 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Williams Dam.
⚓ Boat launches
More boat launches →⛺ Campgrounds
- Thousand Hills State Park
- Long Branch State Park
- Brookfield City Park
- Unionville City Rv Park
- Pershing State Park
🛡 More reservoirs
More reservoirs →Track Williams Dam in the Snoflo app
Save this dam as a favorite and get the local NOAA / yr.no forecast plus regional flow context wherever you are.
About Williams Dam
Where does the data for Williams Dam come from?
Structural and regulatory data come from the U.S. Army Corps of Engineers' National Inventory of Dams (NID). Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.
How often is the report updated?
NID structural data refreshes annually as the Corps publishes updated assessments. The weather forecast refreshes throughout the day.
What does the Low hazard rating mean?
The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.
What's "% of normal"?
The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).
Can I get alerts when storage crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this dam, set a threshold, and you'll get a push the moment conditions cross.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Williams Dam.